baber/WOPTO huggingface dataset:
Patent GB-223680-A (GB)
Title: Improvements relating to chain-grate stokers
IPC: F23H11/00
Filed: 1923-08-03
Abstract: 223,680. Goodrich, W. F., Skinner, E. H., and Vickers-Spearing Boiler Co., Ltd. Aug. 3, 1923. Grates.-In a chain grate in which the links are provided with a number of fuelsupporting surfaces as described in Specification 216,239, means are provided whereby the links may be reversed while in position in the grate. As shown in Figs. 1 and 2, the links 1 are mounted on rotatable rods 2 square in cross section to engage with corresponding holes in the links. The rods also engage with links 3 of the driving chains but their corners are rounded at such points of engagement so that they may rotate freely from these links. The links 1 are prevented from rotating during their passage around the front and rear drums 4, 5 by means of pivoted box-shaped members 15, Fig. 3, arranged towards one end of the drums. When it is desired to reverse a row of links, the member 15 with which it engages on the drum is unlocked by rotating the lock nut 17 and the member is swung outwardly, the rod 2 supporting the links then being turned, after which the member 15 is returned to its normal position and locked.
Patent GB-1128757-A (GB)
Title: Vapor deposition process for producing ªß-silicon carbide
Inventor: EVANS ARTHUR JACK SACKVILLE
IPC: C01B31/36
Filed: 1966-05-05
Abstract: 1,128,757. #-Silicon carbide. TEXAS INSTRUMENTS Inc. 5 May, 1966, No. 19961/66. Heading C1A. A layer of #-SiC is produced by introducing a gaseous stream containing Si- and C-bearing compounds and H 2  into a reaction zone containing a heated substrate such that a quiescent zone is established adjacent to the substrate through which the gases diffuse and react to deposit SiC. The product may be stoichiometric, or may have up to 1% excess C or up to 40% excess Si. The substrate, which is heated to 900-1470‹ C., may be a filament of Ta, SiC or graphite, heated by direct passage of electric current using water-cooled electrodes (Fig. 1, not shown), or a graphite crucible, heated by R.F. coils (Fig. 2, not shown). Alternatively, a carbon body with depressions in it may be used, and the carbon subsequently burnt off to give boat-shaped articles. The Si and C source may be in the same compound, e.g. CH 3 SiCl 3 , (CH 3 ) 2 SiCl 2 , (CH 3 ) 3 SiCl or (CH 3 ) 4 Si, or in different compounds, e.g. C from methane, ethane, propane, benzene, toluene, xylene, ethylene, or propylene, and Si from SiCl 4 , SiBr 4 , SiI 4 , mono-, di- or tri-, chloro-, bromo-, or iodo-silane. The mole ratio CH 3 SiCl 3 /H 2  may be 4À2-99.
Patent GB-1164701-A (GB)
Title: A Method of Producing Fused Alumina and a Furnace for Effecting Same
Inventor: GUSAROV VLADIMIR NIKOLAEVICH
IPC: C01F7/38
Filed: 1967-05-01
Abstract: 1,164,701. Discharging arc furnaces. ORDENA LENINA CHELYABINSKY ELEKTRO-METALLURGICHESKY KOMBINAT. 1 May, 1967, No. 19969/67. Heading F4B. [Also in Division C1] An electric arc furnace in which fused alumina is produced by a carbon reduction smelting of bauxite agglomerate, is provided with tap holes 1, 2 at different levels through which molten alumina and molten iron, the by product, are tapped respectively. The bottom of the furnace is lined with a fused alumina block 4, and has a further tap hole 3 through which the molten iron is drawn off after the upper part of the block 4 has been worn away. When fused alumina appears at this tap hole the furnace is shut down for repairs, the alumina by solidifying therein, reforming the fused alumina block with which the furnace hearth is lined.
Patent GB-645358-A (GB)
Title: An improved method of building construction
IPC: E04B1/20
Filed: 1947-07-24
Abstract: 645,358. Building construction; walls; roof slabs. STEANE, J. July 24, 1947, No. 19970. [Classes 20(i), 20(iv) and 87(i)] Temporary building comprises vertical posts 3 having pegs 6 engaging the foundation 1 and pegs 5 engaging a frame 8 which is offset from longitudinal grooves 7 in the posts so as to permit wall slabs 10 being slid into position. Window frames 12 and door frames 13 are also slid between two posts. Partition walls are similarly formed with slabs and grooved pillars. Various materials are described for the slabs 10 preferably brick or tile faced concrete. The frame 8 may have cross members. The concrete roof slabs are provided with interlocking edges, Fig. 4, providing runways 17 for water. The roof may have an internal gutter in a supporting beam. A roof slab is shown thickest at the middle or ridge part and tapering so that the top slopes towards the eaves Specification 584,803 is referred to.
Patent GB-473716-A (GB)
Title: Improvements in and relating to the discharge of articles from moving conveyors
IPC: B08B9/44
Filed: 1936-07-20
Abstract: 473,716. Endless - chain conveyers. DOBRENTEY, A., and BRITISH MILLER HYDRO CO., Ltd. July 20, 1936, No. 20022. [Class 78 (i)] In means for discharging articles, such as bottles, from carrier cups on a conveyer by ejecting fingers which have a vertical displacement and a translatory movement, the fingers are guided into the cups and the translatory movement is imparted by the conveyer. The cups 2 which receive the necks of the bottles are arranged in two rows, Fig. 3, and are entered by ejecting fingers 3, 4, Fig. 2, mounted on a plate 5. Parallel links 7 support the plate 5 on a frame 6 which is reciprocated vertically by a rotary cam 13, mounted on a shaft 17 driven by the engagement of the conveyer chain with a sprocket 19. When the frame 6 rises, a long tapered finger 22 on the plate 5 enters an empty cup 2, and couples the conveyer and plate. Further upward movement of the frame causes the fingers 3, 4 to enter the cups and eject the bottles. When the finger 22 leaves its cup on the downward movement of the frame, a spring 47 returns the plate 5 to its normal inoperative position. This movement of the plate is retarded by the engagement of a ramp 23, Fig. 3, on it with a roller 24 on laterally movable bar 25 controlled by a cam 26 on the shaft 17. The ejected bottles are directed into pivoted channel members 27 by pivoted and counterweighted flat springs 39, and when the members 27 are rotated from the horizontal into the vertical position, they are delivered the correct way up on to the conveyer 34. Movement of the members 27 is effected by the action of a rotary cam 37 on a roller 32 mounted on a pivoted toothed sector 30 which meshes with a sector 29 mounted on the shaft 28. As the bottles slide from the members 27 they abut against a guard 35 which is pivoted at 36 and counterweighted at 38.
Patent GB-975154-A (GB)
Title: Apparatus for lifting loads
Inventor: STEAD ALBERT HENRY
IPC: B66F7/08
Filed: 1961-06-02
Abstract: 975,154. Garage lifts. MANN EGERTON & CO. Ltd. Aug. 17, 1962 [June 2, 1961], No 20054/61. Heading B8H. The lifting frame 6 of a garage lift is connected to a base 2 by parallel links 9, each pivoted at its upper end to the frame and supported at its lower end by a roller 10 running on channel-section guides 3, 4 on the base. The links 9 are coupled by transverse shafts 11, 12 which are connected by links 13, 14, and levers 22, 22a are pivotally connected between the shafts 11, 12 and pivots 15 on the base. The frame 6 is raised by an hydraulic ram 8, 18 pivoted between a point 23 on the base and one end of a lever 19 mounted for rotation about the axis of shaft 12, the other end of the lever 19 being provided with a roller 20. In operation, the initial extension of the ram, when the frame 6 is in its lowermost position, causes the lever 19 to rotate about the axis 12 thereby forcing the roller 20 into contact with a rail 26 on the base and raising the shaft 12. Further extension of the ram rotates the lever 19 into the position shown in Fig. 2 where stops 24 on the levers 22a engage shoulders 25 on the shaft 12, whereafter the lever 19 exerts a pulling force on the shaft to raise the frame 6 to its fully elevated position. The frame 6 is provided with adjustable transverse supporting beams slidably supporting vehicle engaging pads 17. In a modification (not shown), the frame is provided with tracks for supporting the vehicle wheels. In a further modification (not shown), the base is supported on spring-loaded wheels which raise the unloaded base from the ground. A spring-loaded catch may be provided for locking the lift in its elevated position.
Patent GB-249006-A (GB)
Title: Improvements in combined switches and wall connectors
IPC: H01R13/707
Filed: 1925-08-10
Abstract: 249,006. Arnold, C. L., and M. K. Electric, Ltd. Aug. 10, 1925. Plug couplings combined with switches. One of the plugs 28 is formed as a key that moves a bolt when inserted, so releasing a switch, the bolt being further moved when the switch is closed, locking the plug in place. The bolt 15 is supported by two slots 16, 17, one engaging a pin 18 and the other the switch lever 13, and is drawn to the right by a spring 19, a shoulder 22 engaging over a catch 23 and preventing movement of the switch lever. When the plug 28 is inserted it pushes aside the projection 25 of the bolt, moving the shoulder 22 out of engagement with the catch 23. When the switch is closed, a second projection 27 enters the gap 26 in the plug and prevents its withdrawal.
Patent GB-614084-A (GB)
Title: Improvements relating to friction lighters
IPC: F23Q2/46
Filed: 1946-07-04
Abstract: 614,084. Frictional lighters. BENEY (1938), Ltd., and TIMBERS, H. R. July 4, 1946. No. 20073. [Class 75 (iii)] In a frictional lighter a cylindrical guard 17 is rotatably mounted to enclose the friction wheel 14 and has an aperture 19 which faces the wick when the lighter is being operated but can be rotated to expose the friction wheel 14 for cleaning purposes. Operating wheels 16, the ends of the flint tube 12, the friction wheel 14 and the guard 17 are all coaxially mounted on a spindle 15.
Patent GB-643232-A (GB)
Title: Improvements in or relating to the manufacture of lenses
Inventor: FAUDELL CHARLES LESLIE
IPC: C03B23/035
Filed: 1948-07-28
Abstract: 643,232. Making lenses. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 28, 1948, No. 20084. [Class 56] A lens having one surface curved and the other substantially plane is made by heating a sheet of glass so as to cause it to become plastic and shaping one surface by causing it to conform to the shape of a mould of complementary curvature, the other surface being thereafter ground substantially plane and polished. The plastic glass may be assisted in conforming to the mould surface by a vacuum created between the mould and the glass, or by the application of external pressure. The glass is preferably polished before moulding. A correction plate for a Schmidt optical projection system may be made in this manner, and before or after moulding may be provided with a central aperture through which a cathode ray tube projects. Specifications 3444/09, [Class 56]. and 537,738, [Group XX] are referred to.
Patent GB-1024133-A (GB)
Title: Improvements in and relating to the formation of plastic articles
IPC: B29C49/06
Filed: 1962-10-16
Abstract: 1,024,133. Injection and extrusion moulding machines. OWENS-ILLINOIS Inc. Oct. 16, 1962 [July 13, 1962], No. 20119/64. Divided out of 1,024,132. Heading B5A. A predetermined volume of plasticized material is fed by a screw 150 past a valve 165 to an accumulation chamber 170 where it is stored under pressure, a predetermined portion of this material is ejected from this chamber through an injection or extrusion orifice, and the chamber 170 is then refilled with fresh plasticized material from the screw. Accurately metered quantities of material can thus be supplied. In Figs. 1, 5 (not shown) the material is delivered to the bore of a sleeve 161 containing an injection piston (not shown) while in Figs. 7, 8 (not shown) injection into a mould cavity 634 is effected by the pressure produced by a piston 172 in the chamber 170. First embodiment (Figs. 1, 5).-Material plasticized by the screw passes through passages 158, 166, 167 into the accumulation chamber 170 and pushes the piston 172 rearwardly against the pressure in a chamber 178. When this piston reaches the position shown in Fig. 5, the valve 165 is moved to its intermediate position (Fig. 5) to cut off the flow of plasticized material. To discharge the accumulation chamber, the valve 165 is moved to its third position (Fig. 6, not shown) and the piston 172 moved into the cylinder again. Material is thus forced through passages 171, 157 into the bore 160 until an adjustable nut 181 on a threaded extension 180 of the piston 172 comes into contact with a guide sleeve 183. The valve 165 is controlled by a fluid pressure cylinder 197 and piston 195, the intermediate position being determined by the piston-rod 201 of an additional piston 200 and cylinder 198. Movement of piston 172 is controlled by circuits (not shown) including pressure switches operated by the nut 181 and a collar 188. Second embodiment (Figs. 7, 8).-The valve 165 has an extension 625 comprising a grooved portion 627 (Fig. 8) and lands 626. As the piston 172 advances, material is forced through passages 171, 157, 637, 635, 636 and an injection orifice 633 into the mould. When the valve 165 is moved to the Fig. 8 position the extension 625 retains the material in the mould under pressure while the chamber 170 is being refilled.
Patent GB-965739-A (GB)
Title: Process and plant for manufacturing and curing corrugated asbestos-cement slabs
IPC: B28B1/52
Filed: 1963-05-21
Abstract: 965,739. Corrugated asbestos-cement slabs. CAMILLO PASQUALE, and ALBINA COMOGLIO PASQUALE, [trading as REVISIONE COSTRUZIONE MACCHINE]. May 21, 1963 [May 21, 1962], No. 20180/63. Heading B5A. A process for manufacturing corrugated asbestos-cement slabs comprises winding layers of material on a cylindrical core 1, equalling in circumference at least the length of the final slabs, to form a tubular blank, cutting the blank along a generatrix and laying the resultant sheet on a horizontal conveyer 2, cutting the slabs to length using a transverse cutter 6, and corrugating it by passing it between two opposite spaced sets of endless tracks 7, 8, passing it between rollers 11, which improve the shaping of the slabs and apply a thin oily film to both slab surfaces, trimming the longitudinal edges of the blank with cutters 14, and piling the slabs on suitably shaped surface boards 18 which form two superimposed tracks for conveying the slabs along a curing tunnel 27 and to storage. Microswitches 14, 15 control the operation. The slabs are transferred from conveyer 12 to the boards 18 by suction conveyers 17, the board is advanced by hydraulic cylinder to an elevator 24 where they are lowered to the bottom level and travel through the curing oven. At the end they reach another elevator 22 which raises them to the upper level. They again pass through the oven and are removed to another conveyer by suction conveyer 28.
Patent GB-1135870-A (GB)
Title: Method of winding thermoplastic resin sheeting into rolls and rolls obtained thereby
Inventor: MERNIEKS FRANCIS
IPC: B29C53/32
Filed: 1967-05-02
Abstract: 1,135,870. Winding webs. CANADIAN INDUSTRIES Ltd. 2 May, 1967 [3 June, 1966], No. 20198/67. Heading B6B. In the formation of a roll of thermoplastic web material 2, a foam plastic insert 4 is inserted over the leading edge of the web 2 to prevent distortion or damage to subsequent layers of the web 2 by their overlapping the leading edge. In one form, the insert 4 is wrapped around a winding core 1 and the leading edge of the web 2 is fed between the insert 4 and the core 1. According to another arrangement (Fig. 4) the leading end of the web 2 is wrapped around the core 2 and the insert 4 is fed between the first and second convolutions of the web. The insert 4 may have a length larger or shorter than that of the core circumference, and is tapered at its trailing edge and possibly at its leading edge. It may be attached to a backing 5 of thin, flexible, but substantially non- stretchable material.
Patent GB-663804-A (GB)
Title: Improvements in or relating to horticultural frames or glass houses
Inventor: ROWLANDS HAROLD LOUIS
IPC: A01G13/04
Filed: 1949-08-03
Abstract: 663,804. Garden frames. GUANO FERTILISER CO.. Ltd. July 28, 1950 [Aug. 3, 1949], No. 20200/49. Class 20(i) The framing 6 of a displaceable roof light of a garden frame is of a length approximately equal to the common distance between proximate roof-supporting members 2 and wall-supporting members 1 respectively to which it is articulated by a pair of links 7 pivoted at one end to axes 8 spaced apart along the width of the framing 6, and at the other to points 5 intermediate the ends of the roof and wall supporting members 2 and 1 respectively. In this way the light can be swung from a position parallel to the roof, which is unglazed, to one parallel to the wall. The length of the wall-supporting members 1 is preferably greater than that of the members 2 so that the framing 6 does not overlap the wall at the upper and lower edges.
Patent GB-1364778-A (GB)
Title: Counterbalance hinge
IPC: B65D43/24
Filed: 1972-05-02
Abstract: 1364778 Counterbalancing WEBER-KNAPP CO 2 May 1972 [17 Nov 1971] 20430/72 Heading B8B [Also in Divisions E2 and F2] In a spring counterbalance mechanism in which a stationary member 20 is pivoted at 26 to an upwardly movable member 24, two compression springs 50, 80 act between the members; spring 50 expanding as the member 24 moves up to always counterbalance its movement and spring 80 being first compressed to act in opposition to spring 50, then being allowed to expand to help the operation of spring 50. The spring 50 acts between a mounting plate 62 fixed to member 20 and an adjusting nut 54 screwthreaded on to a bolt 52; the bolt being received in a connector 60, pivoted at 44 to the member 24. The spring 80 acts between a plate 92 fixed to member 20 and a connector 94 pivoted at 46 to member 24, and during the initial upward movement is compressed. Once pivot point 46 has moved over-centre with respect to the pivot 26, the spring 80 is free to expand. A resilient plastics brake sleeve 58 is pressed by the spring 50 into a cup shaped member 60 to frictionally engage bolt 54.
Patent GB-530364-A (GB)
Title: Improvements in tools for use in assembling spring interiors for cushions, mattresses and analogous purposes
IPC: B21F33/04
Filed: 1939-07-13
Abstract: 530,364. Connecting mattress &c. springs. DAVIS, J. M. July 13, 1939, No. 20454. [Class 83 (iv)] A tool for securing together the ends of the springs of spring interiors for cushions, mattresses &c. by tie wires, consists of a pair of fluid operated dies, one of which has a T-shaped recess and the other a pair of grooves lying parallel with the centre limb of the T-recess. The tie wires, are formed with a series of lateral U-bends each limb of the bend being of S-form as shown in Fig. 8. The bends are clenched over the overlapped ends of the strings in order to secure the rows together, the inner bends 2a being engaged over the outer coil 10 and the bends 2b at the free end being engaged under and over the. subjacent coil 9. The clinching tool comprises a pair of pivoted jaws 20, 21 at the end of a portable pneumatic ram 22, the jaw 20 having a T-shaped recess 24 and the jaw 21 having an inclined face provided with a U-shaped groove 28, 29 with open ends. The tooling may be provided with a press button or trigger-operated valve and is provided with an adapter for connection to a source of fluid pressure. Specifications 630,363 and 515.821, [Group XIV], are referred to.
Patent GB-574033-A (GB)
Title: Improved core construction for induction motors and like dynamo electric machines for reducing the air gap between the stator and rotor of such machines
IPC: H02K1/06
Filed: 1943-12-07
Abstract: 574,033. Cores for dynamo-electric machines. GOLDSCHMIDT, E. E. Dec. 7, 1943, No. 20472. [Class 35] The surfaces of the stator and/or the rotor adjacent the air gap are coated with finelydivided magnetic material held together by an insulating binder, the coating being'applied by a painting, spraying or like process. The core may be ground after the application of the coating.
Patent GB-1061238-A (GB)
Title: Improvements in or relating to high frequency circuit arrangements for capacitive transducers
IPC: H04R19/04
Filed: 1964-05-19
Abstract: 1,061,238. Transistor-amplifying circuits; electrostatic transducers. AKUSTISCHE U. KINO-GERATE G.m.b.H. May 19, 1964 [May 20, 1963], No. 20547/64. Headings H3T and H4J. The invention relates to a circuit for a capacitive transducer, being of the modulated high-frequency type and comprising an oscillator A which includes the primary winding of a transformer U 1 , the secondary of which is centre-tapped and is shunted by the capacitive transducer C 0  in series with a fixed capacitor C 1 . A high-frequency choke Dr is connected between the centre-tap and the join of the capacitors, a bridge-type detector circuit being formed in conjunction with diodes D 1 , D 2 , which are connected to impedance-matching transformer windings S 1 , S 2  respectively. A low-frequency output is obtained via audiotransformer œ 2  a primary winding of which is fed from the diodes via resistors R 1 , R 2 . According to the invention, detector circuit noise is balanced out by means of additional transformer windings S<SP>1</SP> 1 , S1 2  which feed diodes D<SP>1</SP> 1 , D<SP>1</SP> 2  respectively, the output of which is unmodulated by transducer C 0  since the windings S1 1 , S<SP>1</SP> 2  are returned to the common point of capacitors C 0 , C 1 . The output from diodes D<SP>1</SP> 1 , D<SP>1</SP> 2  is fed via resistors R<SP>1</SP> 1 , R<SP>1</SP> 2  respectively to an additional primary winding on transformer U 2 , in such a manner as to oppose the output from diodes D 1 , D 2 .
Patent GB-184994-A (GB)
Title: Improvements in shaping and ironing tools
IPC: D06F75/30
Filed: 1921-08-02
Abstract: 184,994. Kern, F. E. Aug. 2, 1921. Addition to 183,008. Drawings to Specification. Electric hand-irons; stationary heated irons.- The head of the shaping and ironing tool described in the parent Specification is provided with a flat smooth elliptical surface, and substantially conical ends.
Patent GB-1038340-A (GB)
Title: Process for the production of pyrethic acid
IPC: C07C61/04
Filed: 1963-05-23
Abstract: Pyrethric acid in a purified state, is prepared by heating t-butyl pyrethrate at 180-350 DEG  C. The t-butyl pyrethrate is preferably obtained in a series of steps from t-butyl chrysanthemum mono-carboxylate which is oxidized with selenium dioxide or selenious acid to t-butyl 2,2 - dimethyl - 3 - (21 - formyl - 11 - propanyl) -cyclopropane-carboxylate, which is oxidized in the presence of a copper salt or silver oxide to 2 - methyl - 3 - (21, 21 - dimethyl - 31 - t - butoxycarbonyl - cyclopropyl) - acrylic acid which is methylated e.g. under alkaline conditions with diazomethane or dimethyl sulphate, to the t-butyl pyrethrate.
Patent GB-499287-A (GB)
Title: A washing support for discs of centrifugal separators
IPC: B04B15/12
Filed: 1938-07-12
Abstract: A rod for the support, during washing, of the discs of bowls of centrifugal separators, consists of a core of wood with a porous outer layer impregnated with artificial resin.  The porous layer may be produced by the extraction of lignin from the surface of the rod, or by covering the rod with paper or cloth which is afterwards impregnated.  Where the rod has ribs for guiding the discs it may be sufficient to provide the ribs alone with the coating.  The wood between the ribs is impregnated with oil, such as linseed oil, to reduce its power of absorbing water.